cs50.harvard.edu

CS50: Computer Science Courses and Programs from Harvard | edX
Last update: . cs50.harvard.edu is a safe website about "CS50: Computer Science Courses and Programs from Harvard edX in University category. The server is running at 54.83.13.98 ip address and there is a secure connection certificate between the website and the visitor. When we did a security search, no viruses or spam were detected on web page. The similar & alternative web sites to cs50.harvard.edu.
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⏰ Status: Cs50 harvard edu- is Down?
From the table below, you can track the service conditions that we have periodically check in relation to the interruptions.
Date | Server Status | Speed |
---|---|---|
2025-02-07 22:01:03 | Online | 0.1007 Second |
2025-02-01 05:39:02 | Online | 0.0546 Second |
2025-01-31 11:40:02 | Online | 0.0272 Second |
2025-01-30 17:41:04 | Online | 0.0319 Second |
2025-01-29 23:40:08 | Online | 0.0313 Second |
2025-01-29 05:41:02 | Online | 0.0303 Second |
2025-01-28 11:42:03 | Online | 0.0291 Second |
2025-01-27 17:43:02 | Online | 0.0322 Second |
2025-01-26 23:44:04 | Online | 0.0386 Second |
2025-01-26 05:44:03 | Online | 0.0322 Second |
2025-01-25 11:44:02 | Online | 0.0324 Second |
2025-01-24 17:42:03 | Online | 0.0298 Second |
2025-01-23 23:43:03 | Online | 0.0289 Second |
2025-01-23 05:43:03 | Online | 0.0311 Second |
2025-01-22 11:44:02 | Online | 0.0298 Second |
2025-01-21 17:44:02 | Online | 0.0368 Second |
2025-01-20 23:41:03 | Online | 0.0312 Second |
2025-01-20 05:41:03 | Online | 0.0322 Second |
2025-01-19 11:42:03 | Online | 0.0281 Second |
2025-01-18 17:42:03 | Online | 0.0459 Second |
Known Searchs
cs50x 16Kcs50 12K
cs50 python 9K
cs50p 9K
cs50w 6K
☁ Content Metrics
- Python 5%
- Website 3%
- HTML 3%
- Based 3%
- CSS 3%
- JavaScript 2%
- SQL 2%
- and 2%
- the 1%
- that 1%
- website 1%
- for 1%
- Harvard 1%
- you 1%
- with 1%
- users 0%
- Game 0%
- CS50 0%
- web 0%
- other 0%
- %
Website raw text content tells search engines what your web page content is about. The word usage rate is very important and the frequency of words used above 4% is perceived as spam.
☯ Technology Analysis
Cloudflare Browser Insights
Google AdSense
Google Analytics
Google Tag Manager
- OneTrust
☂ Security Analytics
✇ DNS Records
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---|---|---|
A | 42 | 3.223.50.54 |
A | 42 | 54.83.13.98 |
NS | 300 | a11-67.akam.net |
NS | 300 | a1-171.akam.net |
NS | 300 | a10-66.akam.net |
NS | 300 | a6-66.akam.net |
NS | 300 | a7-65.akam.net |
NS | 300 | a16-64.akam.net |
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TXT | 180 | globalsign-domain-verification=87677a19ae97bfbeec25ff1510a80420 |
MX | 19 | mx0a-00171101.pphosted.com |
MX | 19 | mx0b-00171101.pphosted.com |
SOA | 300 | a1-171.akam.net netmanager.harvard.edu |
AAAA | 300 | 2a04:4e42:200::645 |
AAAA | 300 | 2a04:4e42:400::645 |
AAAA | 300 | 2a04:4e42:600::645 |
AAAA | 300 | 2a04:4e42::645 |
ℹ Whois Records
Domain Name: HARVARD.EDU
Registrant:
Harvard University
784 Memorial Drive
MA
Cambridge, MA 02139
USA
Administrative Contact:
Benjamin Dash
Harvard University
784 Memorial Drive
Cambridge, MA 02138
USA
+1.6174955708
Benjamin_Dash✉harvard.edu
Technical Contact:
Network Operations
Harvard University
HUIT Network Services
60 Oxford Street
Cambridge, MA 02139
USA
+1.6174955708
netmanager✉harvard.edu
Name Servers:
A16-64.AKAM.NET
A1-171.AKAM.NET
A10-66.AKAM.NET
A7-65.AKAM.NET
A11-67.AKAM.NET
A6-66.AKAM.NET
Domain record activated: 27-Jun-1985
Domain record last updated: 13-Feb-2024
Domain expires: 31-Jul-2026
☰ Http Headers
date | tue, 14 may 2024 18 |
---|---|
content-type | text/html |
set-cookie | awsalb=nksej2jias81wby65o04uqidhdncnmz9u0aq697jz7lw/k1fqahdnftghurefjdelmutosnali+w+apq6gmxnlanuokqm+kpsvs4hlun09smya8f1ugi3drad83a; expires=tue, 21 may 2024 18 |
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server | nginx |
last-modified | wed, 01 may 2024 16 |
etag | w/"ba18ea2eb705bd351c6026ef6813f0a6" |
strict-transport-security | max-age=31536000; includesubdomains |
cache-control | no-cache, no-store, must-revalidate |
expires | 0 |
pragma | no-cache |
x-content-type-options | nosniff |
content-security-policy | frame-ancestors 'self' |
x-frame-options | sameorigin |
permissions-policy | camera=(self), geolocation=(self), microphone=(self) |
referrer-policy | strict-origin |
x-xss-protection | 0 |
content-encoding | gzip |
⚔ SSL Analytics
Subject | CN = cs50.harvard.edu |
---|---|
Issuer | C = US, O = Amazon, CN = Amazon RSA 2048 M02 |
Version | 2 |
Serial Number | 06a79a72205bc47d713169cb56697751 |
Signature Algorithm | sha256WithRSAEncryption |
Public Key Algorithm | rsaEncryption |
Authority Key Identifier | C0:31:52:CD:5A:50:C3:82:7C:74:71:CE:CB:E9:9C:F9:7A:EB:82:E2 |
Subject Key Identifier | C6:87:B2:81:F7:3C:05:1D:21:26:6D:39:85:97:D9:9D:DE:05:11:F0 |
Subject Alternative Name | DNS:cs50.harvard.edu, DNS:*.cs50.harvard.edu |
Certificate Policies | Policy: 2.23.140.1.2.1 |
Key Usage | Digital Signature, Key Encipherment |
Extended Key Usage | TLS Web Server Authentication, TLS Web Client Authentication |
CRL Distribution Points | Full Name: URI:http://crl.r2m02.amazontrust.com/r2m02.crl |
Authority Information Access | OCSP - URI:http://ocsp.r2m02.amazontrust.com CA Issuers - URI:http://crt.r2m02.amazontrust.com/r2m02.cer |
Basic Constraints | CA:FALSE |
CT Precertificate SCTs | Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 76:FF:88:3F:0A:B6:FB:95:51:C2:61:CC:F5:87:BA:34: B4:A4:CD:BB:29:DC:68:42:0A:9F:E6:67:4C:5A:3A:74 Timestamp : Nov 24 02:35:14.627 2023 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:FB:26:26:D5:6C:B6:30:DB:67:4F:D4: CB:F6:CC:84:72:11:39:0C:97:D3:47:13:E7:3D:3C:83: FB:7F:8D:22:3B:02:21:00:FE:1B:72:A6:6E:CB:59:17: 1E:E1:FB:27:4E:82:31:52:8B:B2:93:2E:0C:9C:25:C3: 0E:ED:1E:7B:A0:BC:30:18 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 48:B0:E3:6B:DA:A6:47:34:0F:E5:6A:02:FA:9D:30:EB: 1C:52:01:CB:56:DD:2C:81:D9:BB:BF:AB:39:D8:84:73 Timestamp : Nov 24 02:35:14.587 2023 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:1B:4B:63:00:C4:BC:21:E2:25:A0:4F:9B: 77:F3:E0:A7:30:11:34:4B:23:B1:4F:D1:88:BA:C8:08: 16:1B:94:7C:02:20:71:F5:D4:9E:7B:AF:5E:4F:B4:A4: CC:7E:C6:8C:CA:59:D3:CF:45:31:ED:68:D7:DF:DA:BE: 72:B9:BE:70:02:4C Signed Certificate Timestamp: Version : v1 (0x0) Log ID : DA:B6:BF:6B:3F:B5:B6:22:9F:9B:C2:BB:5C:6B:E8:70: 91:71:6C:BB:51:84:85:34:BD:A4:3D:30:48:D7:FB:AB Timestamp : Nov 24 02:35:14.570 2023 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:0E:52:7F:73:DC:2D:98:CB:70:73:87:8D: 7E:F1:B1:0A:46:95:69:80:4C:F1:3C:89:17:52:41:21: 35:0B:DC:C5:02:20:23:32:27:01:E8:0E:C1:8F:9C:EB: A9:A1:EE:D1:E8:70:EE:06:76:03:0C:3F:13:AE:42:57: 33:54:38:D5:2B:B3 |
Start date | Nov 24 00:00:00 2023 GMT |
Expire date | Dec 22 23:59:59 2024 GMT |
RSA Public Key | 2048 |
rsa(n) |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|
rsa(e) | 10001 |
Signature | 00:a1:68:65:29:a2:94:3d:a3:c7:89:71:76:4f:bc:26:b0:37:2c:bc:18:02:1c:43:d4:7e:06:bc:1b:c7:ca:5d:73:af:3d:aa:8a:13:ac:e9:ba:ad:71:8e:a8:08:14:e8:18:ee:27:6a:78:ae:bc:6e:45:5f:75:ef:cb:57:55:aa:22:e8:bf:bd:1f:a2:08:17:58:b4:c7:2f:e1:a8:dd:b0:f8:06:26:27:43:02:df:70:7a:ec:77:52:1c:af:03:9c:e9:54:b8:55:a4:79:90:3e:bc:79:9e:36:9d:28:e3:52:2a:82:85:a4:47:25:05:e6:e9:46:5b:aa:d8:f7:54:57:38:22:4b:be:be:88:0e:0c:07:27:bb:f9:2b:a3:88:ef:98:07:f0:f6:b1:f8:58:4d:36:e2:55:a8:11:b1:01:2a:b2:08:4a:f8:01:ef:31:98:d2:d5:27:83:d5:30:7c:9b:de:fe:16:0a:d8:29:62:b4:9b:7e:d5:ef:d6:91:6f:94:31:5d:23:37:64:ea:b0:d7:81:11:24:46:d4:4f:70:93:7c:8c:60:6e:6c:81:ba:0e:83:e1:c5:55:6d:bc:e0:be:a1:eb:49:d2:28:07:8f:0a:b3:b9:78:4e:d2:dc:f6:0a:86:92:ef:22:f1:7d:3c:4f:26:99:a9:a1:8b:4c:8d:fa: |